Dual-tire wheel structure



Nov. 12, 1929. F. H. MEYER ET AL DUAL TIRE WHEE STRUCTURE Filed Aug. 14,1925 2` snets-snen l Nov. l2, 1 929,

F. H. MEYER ETAL 1,735,290

DUAL TIRE WHEEL STRUCTURE Filed Aug. 14, 1925 2 Sheets-Sheet 2 Y 7 xt ob* lll, lll w Q Il Q' RL m v y v n D Y:

Q n; l u' H m N L, a t

E iihlvll' 0\ Y u 1""5 '"lllh I/vvnvron median plane of eachtire-carrying rim is sub- Patented Nov. 12, 1929 UNITED STATES PATENTOFFICE FRANK H. MEYER AND KLAUS, 0F WARREN, OHIO, ASSIGNORS, BY MESNEASSIGNMENTS, TOv THE GOODYEAR TIRE t RUBBER COMPANY,v OF AKRON, OHIO, A

CORPORATION or omo DUAL-TIRE WHEEL STRUCTURE Application led August 14,1925. Serial No. 50,214.

This invention relates to Wheels of the dual tire type,.and moreparticularly to means for securing tire-carrying rims thereto.

An object ofi our invention is to provide a dual -elly and rim assemblyin which each tire-carrying rim is supported yfrom a circumierentialseat. disposed Substantially to one side of the median plane of the rimregardless of the lateral width of the rim.

A further object of this invention is to provide a dual wheel structurewherein the stantially outside laterally of the rim seats. ing faces ofthe wheel structure.

An additional object of this invention 1s 'to provide van adapter ringfor use in mounting rims on `dual tire wheel structures that definitelyand positively positions the rim laterally with respect to the wheelstructure. Other obiects and advantages to be obtained from practicingthis invention will be apparent from a consideration of ythe'accomlpanying drawings and the following description relating thereto.

Fig. 1 of the accompanying drawings 1s a transverse-sectional view-of awheel vfellyand rim assembly constructed in accordance with thisinvention.

Fig. 2 is a corresponding radial sectional view of a wheel structure,showing a modlied form of this invention; and

Fig. 3 is a .transverse sectional view of a wh eel structureillustrating the application of l n nuts 15 serve to force the rim linto rigid seatthis invention to a metal vehicle Wheel.

A preferred form of pneumatic tire-carry ing. rim 1 is shown in each -ofthe. several adaptations of this invention. Each tlrecarrying rimpreferably comprises a pair ofor disassembled. The basemember 2i'spro--- vided with a tire retaining fiange '4; at its.

outer edge andan outwardly open depressed annular channeli formed'in itsinner edge portion the outer wall of which terminatesv in anupstandingannular shoulder 6; The

side walls of the channel 5 are inclined at an.

oblique angle. The inner wall of the channel \eter of the seatingportion of the rim. Ation of the seating face 16 is formed on eachchannel 5 provides a shoulder that is adapted to be engagedbyusuitablerim clamping means, laterto be described, tomaintain the rimin position on the wheel structure.

The endless sidel'ring/ 3 of the rim structure` comprises an outwardlyextending ,tire

retaining flange 9 that -is 'formed alongA 'its --outer marginal portionand an inwardly extending-Hange' 10 that is adapted to interlock withlthe channel 5 of the base member 2 to maintain the rim parts inassembled relation.

' The Wheel felly 11 shown in Fig. 1 is 'adapted to be 'usedinconnection with any. desired form of vehicle Wheel. It -nay either bemounted directly on the spokes or the ixed rim of the wheel or supportedfrom a disc wheel or it may be mounted on a metal spoke Wheel. Theparticular felly shown in Fig. 1 preferably is made from a hot rolledsection. The inner edge ofthe telly, .with reference to the vehicle uponwhich such a wheel structure is mounted, is provided with a raisedfrustoconical rim supporting seat 11a upon which the rim 1 is secured bysuitable clamps 12 of any suitable form. 1 The clamps 12 arerespectively secured in position by studs 13 that are carried bytheupstanding flange 14 that carries the rim seat 11a. Suitable lclampinging relation on the rimyseat of the telly.

The outer-edge portion of the felly is spaced from the inneredge portionby a cylindrical web 11b and has a circumferential seatin face 16 ofsmaller diameter than 'the inner iam- Aporside ofanannular channel 17that, is adapted 5to receive an inwardly extending tongue 18 that isformed on the inner face ofa transversely split adaptor ring19. One faceof the adaptor ring has a seat 2O formed therein that is adapted ytoreceive the radially inner shoulder of the 4channel portion of the rim`4base 2. The seat 20 of the adaptor ring constitutes a Stop againstwhich the rim seats j which definitely positions the outer rim withrespect to the inner rim. A transversely split Wedge ring 2l ofconventional design engages the seating face 17 of the outer rim and theoppostely inclined seating face 22 of the felly 'to rigidly support theouter rim 1 on the felly when clamping members 23 are forced against thewedge ring by suitable through bolts'2i and co-operatingelamping nuts25. Theinner ends of the clamping members 23 engage a depending fiange26 that is formed on the felly. I i

Vheel structures constructed in the manner shown in Fig. 1 are assembledby rst mounting the inner rim l in position on the inclined rim seatingVface 7 of the felly andthen securing the rim in place by tightening theclamping nuts 15 on the studs 13 to force the clamps 12 against theshoulder 8 of the rim..y

The rim 1 is of greater internal diameter than the seating faces 16 and22 of the outer edge portion of the felly, and therefore, readily passesover the outer port-ion of the felly when the outer rim andtheassociated adaptor ring 19 and wedge ring 21 are removed.

The split wedge ring 19 is next placed in position byinserting thetongue 18 into the circumferential channel 17 of the felly and springingthe slit ring over the seat 22 into proper seating relation withthefelly. The inherent contractileresiliency ofthe adaptor ring maintainsit in-position on its seat on 'the felly. The outer rim assembly 1 isnext seated against the shoulder 20 of the adaptor ring and the rim issecured inplace by forcing the wedge ring 21 into rigid seatingengagement with the cooperating inclined seating faces of the rim andthe felly.

Particular attention is invited to the fact.

Y the rims from a supporting seat -that is loeeV cated substantially toone'side of the median plane of the rim,y a structure is obtained which,in cooperation with the general form of felly herein'provided, willautomatically space rims of any of the standard conventional widths theproper distance for the particular sizeof tires carried by the rims.

-The tire spacing thus provided is substantially that prescribed bystandard tire ,and rim specifications to which reputable rim and wheelmanufacturers conform. Y

Fig. 2-of the accompanying drawings illustrates a form of felly 27 thatmay be conveniently manufactured by a cold rolling process, asdistinguished from the hot rolled section that is necessary in thestructure which is specifically described in connection with Fig. 1. Themodification of my invention that is illustrated in Fig. 2`conternplatesa felly that is provided along its inner edge portion with a rim seatingmeans of substantially thesame character as that described'in'connectionwith Fig. 1 and the parts of which are similarly numbered. The outer rimsupporting structure of the felly shown in Fig. 2 is however, ofsomewhat different construction from that illustrated in connection withFig. 1. The marginal .edge portion of the fellyshown in Fig.2 isoutwardly turned to provide an annular upstanding flange 30 havingradial slots 28 formed therein at intervals to receive clamping bolts31, each of which has a head portion that exerts wedging action betweenthe outer face 32 of the felly and the inner face 33 of the annularadaptor ring` 84. One

side of the head of the bolt 81, conforms to the outer face of the fellyand is adapted to seat thereagainst and the other side lof the bolt headhas an inclined wedging face that exerts an outward wedging actionagainst the annular adaptorl ring 84 when the nut 25 is moved againstthe rim clamping member 23.

The annular adaptor ring that is employed inv connection with thisstructure, preferably comprises an outstanding annular flange 35 againstwhich the face 8 of the rim 1 seats and is definitely positioned, anintermediate inclined web -portion having a frusto-conical seating face3G formed on its radially outer portion to engage the wedge ring` A21and a corresponding internal frusto-conical seating face 33 adapted toengage the wedge face of the head of the bolt 31, and an inwardlyextending radial flangeBS that terminates in an outwardly extending lip39 forming a seat against which the clamping members 23 are adapted toseat. The adaptor ring 84 is preferably of uniform thickness beingconvenf iently manufactured by cold rolling process. The adaptor ringmay either be endless or may be transversely split.

The assembly and disassembly of the wheel structure described inconnection with Fig. 2

is accomplished in substantially the same manner as the assembly anddisassembly of the rim structure described in connection with Fig. 1.The mounting structure for the inner rim 1 is substantially the samestructure as that' shown in Fig. 1 and is assembled in exactly the sameway. The `outer rim structure, however, differs somewhat from thestructure described in connection with Fig. 1 and, therefore, the methodof assembling this portion of the wheel structure will be described.

The adaptor ring 7" dit This assemblysis readily accomplished since theupstandingflange 30 of the felly has a series of slots 2S formed atvarious locations in its periphery that are adapted to receive the shankof the corresponding clampingbolts 31. The adaptor ring 341 hascorrespondingly positioned bolt-receiving holes 29 that register withthe slots 28 formed in the upstanding flange 30 of the felly proand thetransverse. bolts 31 are first mounted 1n position substan- -tially asshown 1n the assembly view of Fig. 2,

mounted in convenient manner upon the adaptor ring by means-of the splitwedge ring 21 andthe c lamping members`23 that serve to force the Wedgering 21,:into wedging .relationy with the inclined Wedge face of the rim1 and the inclined face of the adaptor ring 34. The pressure that isexerted on the holt 31 by the tightening of the nut 25 also draws thehead of the bolt in wedging contact with the inclined face 33 oftheadaptor ring and thereby provides wedging'actioiilbetween the face 32of the felly andthe inner -face of the endless or splitadaptor ring 34.

An additional adaptation of our invention is illustrated in Fig. 3 whichshows a modification of this invention asapplied .to a wheelstructurethat does not include a felly of the type illustrated in Figs.1 and 2. ,v

`The' Wheel structure illustrated in Fig. ,'3

comprises a body portion`4() .that has a pair of spaced outwardlyextending disc elements 41l and 42 that are respectively adapted toAsupport a tire-receiving rim on-their outer peripheral faces. The discelement 4 1 has an inclined rim seating face-43 formed on its outermarginal edge portion that corresponds closely to the inclined rimseating portion 11 of the felly described in connection with Fig. 1 and,since it functions-insubstantially the same way'as the rim seatingportion described in connection with Fig. 1, the various elements of therim mounting shown in Fig. respondingly numbered.

The outer peripheral face-,44 of less diameterthan the minimum internaldiameter' ofjtlie rim adapted to' be mounted on the wheel assembly. Atransversely split adaptor ring 45 of a'forin closely corresponding tothe'adaptor ring describedl in connection with Fig. 2is adaptedto seatonthe supporting face 44 ofithe wheel structure. A split Wedge ring 46,havingl boltreceiving lug portions 4T formed thereon, is

used in connectionyvith `this assembly al- ,thoughv the type 4of vsplitlwedgef ring' and 4inner inclined seating face 7 ofthe rim andv the outerinclined seating face 49 ofthe adaptor l'ring to rigidly hold `the rim-1' in;

secure'position on the wlieeldisc 42. The inl clined face 44 of the disc42, being of lesser diameter than vthe innermost diameter of the Ariml1, permits. the rim that is mounted' on the 3 are coredge portion ofthe. disc 42 has an inclined frusto-conieal seating disc 41 to pass overthe disc portion 42 to seating position onthedisc41; The Wedging ring 46is iorced into place by a plurality of nuts 50 that are mounted ontransversely eX- tending threaded lugs 51'. i

The assembly of this wheel structure is substantially the `same as theassembly of the wheel structures previously described. The

innermost i'ini struct-ure isfirst mounted on the wheel disc 41 in amanner that will be unjderstood from` the prior discussion. The

and the r'iin'asseinbly l is mounted on theadaptor ring in opposedrelation to the rim that is secured on the disc 41.` The tiansverselysplit wedge ring 46 is then inserted in position and the clamping nuts50 drawn down upon their correspondingbolts 51 to force the wedgingsurfaces ofthe ring 46 between the seating surface of the rim l and theinclined face 49 of the transverselyxsplit vadaptor ring. Thewedgingaction exerted by the ring 46 forces the adaptor ring 45 into olainpingrelation with the inclined face 44 of thedisc 42 and .rigidly securesthe rim assembly 1 in position on thewheel structure.

Although only a few preferred modifications 'of this inventionare hereinillustrated, it is to be understood Athat the particular formsoflapparatus shown and' described, and theparticular procedure setforth, are pi'esented for purposes .of-explanation and illustration andthat various'modiications of said apparatus and procedure can be madewithout departing from our invention as defined in the appended claims.l i

lVliat we claim is: i

1., A rimseating mechanism for a `vehicle Wheel comprising'a felly4haying a depressed annular seat formed thereon adjacent an upstandingange, an adaptor ring of substantially the same thickness throughouthaving n adjacent theflange and providing an inclined rim supporting'seaton its" peripheral "face, clampingbolts having enlargedhead'portionsv of substantially the saine taper las'gthe Abody portionvof said ring and adapted-t0l Seat on the inner-'face thereof and uponthe depressed annulaiseat of said felly, saidffbolts each having sshankportions adapted'to eX- tend through and Well beyond both-itheupstandingflange of the f elly and theadaptor ring to serve as clamping means forsecuring ahriin on said adaptor ring.

2f a wheel assembly, a member formed with 'a'circumferential seatingsurface; an

annular"v adapter 'ring having `-an inclined bodyV portion seated on theseating surface, an upstanding iange constituting a stop for a rim, andan inwardly extending flange for engagement with the side of the member;and

.for clamping a rim on the member.

means coacting with the ring for clamping ariin on the 'membeln 3. In aWheel assembly, a member `formed A,With a circumferential seatingsurface; an

annular adapter ring having an inclined body portion Seated on theseating surface, an upstanding flange constituting a'stop for a rim, andan inwardly extending iange for engagement with the side of the memberto provide a seat for clamping lugs for securing a, rimv on the member;and means coacting With the ,ring for clamping a rim o n the member.

' 4. In a Wheel assembly, a member formed with a circumferential seatingsurface; an annular adapterring having an inclined body portion seatedon the seating surface, an upstanding flange constituting a stop for arim, andan inwardly extending flange for engage- -ment with the side ofthe member; a Wedge ring on the adapter; and means carried by the memberand coacting with the Wedge ringl ,5. In a Wheel assembly, a memberformed ing a* cylindrical portion lformed with a radially extendingflange apertured for receiv-A FRANK H. MEYER. anni) n. KLAUS.

With a circumferential seating surface; an annular adapter ring havingan inclined body portion seated on the seating surface, an upstandingiange constituting a stop for a rim,

and an inwardly extending iiange for engagef' ment with the'side of themember; a .Wedge ring on the adapter; and means carried by the memberand'coacting with' the Wedge ring and With the adapter ring a rim on themember.

6. In a Wheel assembly, a felloe comprising a cylindrical portion havinga radially for clamping extending iiange formed With a circumferentialseat; .an annular adapter ring having an inclined body portion disposedupon the seatlan upstanding flange constituting a stop for a rim,and aninwardly extending flange for engagement Withthe flange of the felloe; aplurality of bolts traversing the said flange; each bolt having anenlarged head formed with atapered seat for engagement with the bodyportion of the adapter; a Wedge ring on the adapter; and clampingmembers carried by the bolts and engaging the Wedge ring y for securinga rim upon the member. I

7. Ina Wheel assembly, a felloe compris` ing a cylindrical portionhaving a radially extending iange formed with a circumferential seat; anannular adapter ring having an inclined body portion disposed upon theseat, an upstanding flange constituting a stop for a rim, and aninwardly extending flange A for engagement With the flange of thefelloe;

' flanges; each bolt having an enlarged head' a plurality of boltstraversing the. said formed with a tapered-seat for engagement with thebody portion of the adapter; a Wedge ring on the adapter; and clampingmemberscarried by the bolts and engaging the Wedge ring and the adapterring'for securing a rim upon the member. Y ,8. In a Wheel assembly, afelloe compris-

